12655572 has 24 divisors (see below), whose sum is σ = 29936256. Its totient is φ = 4160448.

The previous prime is 12655567. The next prime is 12655579. The reversal of 12655572 is 27555621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12655579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6348 + ... + 8099.

It is an arithmetic number, because the mean of its divisors is an integer number (1247344).

Almost surely, 2^12655572 is an apocalyptic number.

12655572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12655572 is an abundant number, since it is smaller than the sum of its proper divisors (17280684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12655572 is a wasteful number, since it uses less digits than its factorization.

12655572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14527 (or 14525 counting only the distinct ones).

The product of its digits is 21000, while the sum is 33.

The square root of 12655572 is about 3557.4670764464. The cubic root of 12655572 is about 233.0382764823.

The spelling of 12655572 in words is "twelve million, six hundred fifty-five thousand, five hundred seventy-two".